Results 51 to 60 of about 150,397 (174)
Very small cellular compartments can break electroneutrality and harness proton gradients without active transport structures, whereas larger volumes cannot, underscoring why life's critical energy processes are confined in microscopic spaces. ABSTRACT The effect of pH changes in external ionic solutions on liposomes entrapping non‐permeable weak acid ...
Josep M. Ribó +4 more
wiley +1 more source
Effect of dietary organic and inorganic selenium supplementation on chemical, mineral and fatty acid composition of ostrich meat [PDF]
This study evaluated the effect of dietary organic and inorganic selenium supplementation on chemical, mineral and fatty acid composition of ostrich meat.
De Smet, Stefaan +7 more
core +1 more source
This study investigates the stimulus‐responsive behavior of trialkylated triazatruxene dimers for third‐generation luminescent security inks. In particular, the derivative with flexible dodecyl chains displays high‐contrast, reversible color changes upon heating or shear, driven by liquid crystalline phase transitions and involving J ...
Raúl Martín +7 more
wiley +1 more source
SÍNTESIS DE DERIVADOS DE XANTENO EN UN LÍQUIDO IÓNICO
This paper describes a simple and efficient procedure for obtaining an ionic liquid, 1,3-dimethylimidazolium methylsulfate, and its application in the synthesis of various xanthene derivatives, by coupling reactions of benzaldehyde or substituted ...
María E. Choque-Zárate +3 more
doaj
Synthetic epoxy-pregnan steroids: effects on anxiety behavior in rats [PDF]
Neurosteroids like 3α-OH-5α-pregnan-20-one (allopregnanolone) and 3α-OH-5β-pregnan-20-one (pregnanolone) modulate the γ-aminobutyric acid-A (GABAA) receptor function and produce several effects that can be considered for therapeutical pruposes like ...
Coirini, Hector +2 more
core +1 more source
Ein Phthalocyanin‐(Pc)‐Pentamer wurde durch die Kombination lösung‐ und oberflächengestützter Synthese unter Ultrahochvakuumbedingungen erhalten. Die entstandene Pc‐basierte Nanostruktur weist ein exaktes stöchiometrisches Verhältnis von 4:1 zweier unterschiedlicher Metallionen auf, mit präziser Positionskontrolle.
Luis M. Mateo +8 more
wiley +1 more source
The structural and electrical properties of K0.48Na0.52Nb1−xZrxO3−δ (x = 0–0.04) ceramics prepared by the conventional solid-state reaction method were studied.
Héctor Beltrán-Mir +4 more
doaj +1 more source
MULTI-INSTRUMENTAL IDENTIFICATION OF ORPIMENT IN ARCHAEOLOGICAL MORTUARY CONTEXTS [PDF]
Indexación: Web of Science; Scielo.This paper reports on an unknown yellowish mineral compound found in an archaeological context from Chorrillos cemetery (Calama, Chile) dating to the Early Formative period (800 - 200 B.C.).
ARRIAZA, BERNARDO +6 more
core +1 more source
INFLUENCIA DEL CATALIZADOR DE TRANSFERENCIA DE FASES EN LA SÍNTESIS DE HIDROXIMETILFURFURAL (HMF)
Se presenta la síntesis de 5-hidroximetilfurfural (HMF) empleando condiciones de la química verde, el cual se obtiene a través de la reacción de deshidratación de la fructosa empleando un catalizador ácido y un catalizador de transferencia de fase.
Martha Menes-Arzate +5 more
doaj
Influence of the cis/trans configuration on the supramolecular aggregation of aryltriazoles
The ability of trans- and cis-1,2-glucopyranosyl and cyclohexyl ditriazoles, synthesized by CuAAC "click" chemistry, to form gels was studied, their physical properties determined, and the self-aggregation behavior investigated by SEM, X-ray, and EDC ...
Sara Tejera +5 more
doaj +1 more source

